Derek92994's 700 Ser II White Oak conversion

[laatsch55]

Happens to me too...

 

[laatsch55]

The BABB.....

 

[jbeckva]

That's a B.A.B.B. alright...

 

[derek92994]

The BABB.....

Holy Smokes! That's some heavy duty shit right there! =)))

 

[Gepetto]

No version of that in the 700 boards yet Dennis. Haven't talked to Joe about that possibility yet either. I really don't mind soldering the outputs in. Very little need anymore to change out a TO-3...

Will put that recommendation on the wish list Dennis and Lee...

 

[laatsch55]

Good man..... Your Pats kicked some serious ass today...

 

[Gepetto]

Good man..... Your Pats kicked some serious ass today...

Yes they did, only saw the game up to half time. Family time consumed the other half with my return from Asia went out to celebrate some birthdays and anniversaries that happened while I was away.

 

[laatsch55]

Tough being gone during all that..

 

[laatsch55]

Here ya go D2....

 

[grapplesaw]

#14 to the B+,B- fuses from the caps, and #12 from the BR to the caps...

So Lee Have you Increaded all wire sizes by one size, is that correct?
What size for main supply line and power cord #14 ok?

 

[grapplesaw]

Got it in 1 D2!!!!!!!!!!!!!!!!!!!!!!!!!

Mo pics...

Hi
Just want to know how you configured the BR. It looks like You removed the stock cap and added four what 103k 400volt resistors?

What is the benefit fordowning this?
Thanks

 

[derek92994]

Here ya go D2....

WOPL the World!!!

 

[NavLinear]

Hi
Just want to know how you configured the BR. It looks like You removed the stock cap and added four what 103k 400volt resistors?

What is the benefit fordowning this?
Thanks

The surge current increases with larger capacity capacitors and replacing the BR with a new one rated at 25 or 35 amps (@400 V or so) is commonly done. I think Lee is now using some 50 amp bridge rectifiers for the 700. Those aren't resistors - they're capacitors. If you replace the BR it is a good to add snubber caps across the four diodes. I believe that an optimal value for this is 0.022 uF and you'll want a rating of about 400 V or so. The value is not critical but you need to make sure the voltage rating is several hundred volts.

 

[Gepetto]

The surge current increases with larger capacity capacitors and replacing the BR with a new one rated at 25 or 35 amps (@400 V or so) is commonly done. I think Lee is now using some 50 amp bridge rectifiers for the 700. Those aren't resistors - they're capacitors. If you replace the BR it is a good to add snubber caps across the four diodes. I believe that an optimal value for this is 0.022 uF and you'll want a rating of about 400 V or so. The value is not critical but you need to make sure the voltage rating is several hundred volts.

minimum rating of 286.6v for 120VAC input

 

[laatsch55]

So Lee Have you Increaded all wire sizes by one size, is that correct?
What size for main supply line and power cord #14 ok?

Actually Glen, I could have stayed with the stock #16 as this is a 240volt model. The new chassis has a wee bit more room in it and I was finding out how large we could get with the wire. Some customers want bigger wire...

After some testing, maxed out into 4 ohms with a #16 mains cord voltage drop went from 121.3 to 118.7....

 

[derek92994]

Are you fitting an australian power plug to it?

 

[laatsch55]

minimum rating of 286.6v for 120VAC input

Which is peak-to-peak , not RMS....correct?

 

[laatsch55]

Are you fitting an australian power plug to it?

Whats the punch line D2???????? Seriously....George did send one. Funny lookin thing, has to be the one...ands yes I'll fit it..

 

[derek92994]

Whats the punch line D2???????? Seriously....George did send one. Funny lookin thing, has to be the one...ands yes I'll fit it..

LMAO. Yes they probably do look quite bizarre to you guys over there. At least you cant plug it in upside down

 

[laatsch55]

I wouldn't guarantee that!!